Operation
Brightness: On your external test pattern source, select a PLUGE pattern. (PLUGE is an acronym for “Picture
Below Black
Above Black
Figure 4-2. Typical PLUGE Pattern for Adjusting Brightness
PLUGE patterns vary but generally consist of some combination of black, white and gray areas against a black background. The example above includes two vertical bars and four shaded boxes.
Select Brightness from the Picture menu and press ENTER. Adjust the brightness so that:
•The darkest black bars disappear into the background.
•The dark gray areas are barely visible.
•The lighter gray areas are clearly visible.
•The white areas are a comfortable level of true white.
•The image contains only black, gray and white (no color).
Vision Model 140/150 Owner’s Operating Manual | 69 |